SEPTEMBER. 1951
DEMONSTRATION OF OZONE FROM BOTTLED OXYGEN
University of Santa Clara Santa Clara, California
OZONE mav be meoared bv runninz a stream of oxvgen througda pkce'of glass tubing about eight inchks long containing a suitably sized reactangular file, or through a lJ-xhaped gas drying tube packed with coarse steel wool, and toward either of which an induction coil is being discharged (see the figure). A silent-discharge ozonizer may be used for the same purpose. Since rubber is quickly oxidized and destroyed by ozone it is important to use plastic tubing. Ozone in the effluent gas can be detected by its odor as well as by the starch-KI reaction. Steel wool heated in a burner flame and held in a stream of oxygen (flowing through the generator with the induction coil switched off) will burn to a certain extent, but in a stream of ozone (now with the induction coil switched on) will bum about as rapidly as excelsior ignited with a match.
'
-/!
,
OXYGEN+ \
TUBING TYGON
INDUCTION
1 // 1
*E
